Individual provider Active NPI

Gregory Dammann, M.D.

  • Orthopaedic Surgery Physician
  • Galena, IL
National Provider Identifier
1689652455
Registry record updated Feb 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthopaedic Surgery PhysicianTaxonomy code 207X00000X
License
036138935 Issued in IL
Practice address
1 Medical Center Dr
Galena, IL 61036-8118
Phone
(815) 777-1340
NPI assigned
Jan 3, 2006
Last updated
Feb 3, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 3, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Orthopaedic Surgery Physician 207X00000X 036138935 IL Primary

Addresses

Primary practice location

1 Medical Center Dr
Galena, IL 61036-8118

Mailing address

PO Box 268
Freeport, IL 61032-0268
Phone (815) 599-7950

Other practice location 1

117 N Main St
Elizabeth, IL 61028-8800
Phone (815) 858-2238

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address midwestmedical@midwestmedicalcenter.cernerdirect.com Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20151124002306 IL Practitioner - Orthopedic Surgery 6406088319 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Orthopedic Surgery
Education
Other, 1997
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Midwest Medical CenterGroup PAC ID 5698771848, 36 clinicians

Practice addresses (Care Compare)

1 Medical Ctr Dr
Galena, IL 61036-8118
Phone (815) 777-1340

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
91.05 of 100Reported as apm
Quality
72.1
Promoting interoperability
100
Improvement activities
40

Merit-based Incentive Payment System (MIPS)

Final score
83.84 of 100Reported as group
Quality
75.22
Promoting interoperability
92
Improvement activities
40
Cost
73.11

Procedures performed for Medicare patients

ProcedureNumber of procedures
Hip replacement1-10
Knee replacement1-10
Upper limb (arm) arthroscopy (minimally invasive joint repair)1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
HHS exclusion list flag
CMS’s directory marks this NPI as on an HHS exclusion list; no matching OIG record was found. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
7104NEMDDentist

Practice roles

OrganizationSpecialtyStatusNew patients
Midwest Medical Center CurrentSince Jan 1, 2024 Accepting new patients
Midwest Medical Center CurrentSince Jan 1, 2024 Accepting new patients
Freeport Regional Health Care Foundation Past Accepting new patients
Midwest Medical Center Past Accepting new patients

Locations

1 Medical Center Dr
Galena, IL 61036
Phone (815) 776-7381

Interoperability endpoints

  • Direct secure messaging: midwestmedical@midwestmedicalcenter.cernerdirect.com

Organizations & group practices 5

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1136246400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770076800000",
    "number": "1689652455",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 268",
            "city": "FREEPORT",
            "state": "IL",
            "postal_code": "610320268",
            "telephone_number": "815-599-7950"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 MEDICAL CENTER DR",
            "city": "GALENA",
            "state": "IL",
            "postal_code": "610368118",
            "telephone_number": "815-777-1340"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "117 N Main St",
            "address_purpose": "LOCATION",
            "city": "Elizabeth",
            "state": "IL",
            "postal_code": "610288800",
            "country_code": "US",
            "telephone_number": "815-858-2238",
            "fax_number": "815-858-2239",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DAMMANN",
        "first_name": "GREGORY",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-03",
        "last_updated": "2026-02-03",
        "certification_date": "2026-02-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "IL",
            "license": "036138935",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "midwestmedical@midwestmedicalcenter.cernerdirect.com",
            "affiliation": "N",
            "endpointDescription": "Midwest Medical Center Direct Email Access",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCDA",
            "address_1": "1 Medical Center Dr",
            "city": "Galena",
            "state": "IL",
            "country_code": "US",
            "postal_code": "610368118",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Galena, IL

Sources for this page

Verify at the official NPI Registry.